EP 4154399 A1 20230329 - CLASS-D AMPLIFIER WITH NESTED FEEDBACK LOOPS
Title (en)
CLASS-D AMPLIFIER WITH NESTED FEEDBACK LOOPS
Title (de)
KLASSE-D VERSTÄRKER MIT VERSCHACHTELTEN RÜCKKOPPLUNGSSCHLEIFEN
Title (fr)
AMPLIFICATEUR DE CLASSE D À BOUCLES DE RÉTROACTION IMBRIQUÉES
Publication
Application
Priority
- US 202016880629 A 20200521
- US 2021032579 W 20210514
Abstract (en)
[origin: US11128270B1] A class-D amplifier with multiple “nested” levels of feedback. The class-D amplifier surrounds an inner feedback loop, which takes the output of a switching amplifier and corrects for errors generated across the switching amplifier, with additional feedback loops that also take the output of the switching amplifier.
IPC 8 full level
H03F 3/217 (2006.01); H03F 3/183 (2006.01); H03F 3/45 (2006.01)
CPC (source: EP US)
H03F 3/183 (2013.01 - EP); H03F 3/2171 (2013.01 - US); H03F 3/2175 (2013.01 - EP); H03F 3/45475 (2013.01 - EP); H03F 2200/03 (2013.01 - EP US); H03F 2200/135 (2013.01 - EP); H03F 2200/156 (2013.01 - US); H03F 2200/171 (2013.01 - EP); H03F 2200/267 (2013.01 - US); H03F 2200/351 (2013.01 - US); H03F 2203/45526 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
US 11128270 B1 20210921; CA 3184337 A1 20211125; CN 115699569 A 20230203; EP 4154399 A1 20230329; US 11784615 B2 20231010; US 2022045656 A1 20220210; US 2024088843 A1 20240314; WO 2021236462 A1 20211125
DOCDB simple family (application)
US 202016880629 A 20200521; CA 3184337 A 20210514; CN 202180036747 A 20210514; EP 21731343 A 20210514; US 2021032579 W 20210514; US 202117406026 A 20210818; US 202318454730 A 20230823